SEGMENT INFORMATION - Schedule of Segment Activity of Continuing Operations (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2025	Mar. 31, 2025	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2025	Jun. 30, 2024
Revenues:
Crude oil, natural gas and natural gas liquids sales	$ 96,893		$ 116,778		$ 207,222	$ 216,933
Operating costs and expenses:
Production expense	40,393		52,446		85,198	84,535
Exploration expense	2,520		0		2,520	48
Depreciation, depletion and amortization	28,273		33,132		58,578	58,956
General and administrative expense	8,496		7,591		17,548	14,301
Credit losses and other	29		3,341		2	5,153
Total operating costs and expenses	79,711		96,510		163,846	162,993
Other operating income (expense), net	0		132		0	(34)
Operating income (loss)	17,182		20,400		43,376	53,906
Other income (expense):
Derivative instruments gain (loss), net	400		257		326	(590)
Interest (expense) income, net	(2,572)		(1,117)		(3,866)	(2,052)
Bargain purchase gain	0		19,898		0	19,898
Other income (expense), net	353		(1,984)		(659)	(3,784)
Total other income (expense), net	(1,819)		17,054		(4,199)	13,472
Income (loss) before income taxes	15,363		37,454		39,177	67,378
Income tax (benefit) expense	6,983		9,303		23,066	31,541
Net income (loss)	8,380	$ 7,730	28,151	$ 7,686	16,111	35,837
Consolidated capital expenditures	40,866		22,431		92,181	46,453
Gabon
Revenues:
Crude oil, natural gas and natural gas liquids sales	58,567		53,674		110,754	111,178
Egypt
Revenues:
Crude oil, natural gas and natural gas liquids sales	33,257		35,481		67,177	72,442
Canada
Revenues:
Crude oil, natural gas and natural gas liquids sales	4,715		10,384		10,895	16,073
Côte d'Ivoire
Revenues:
Crude oil, natural gas and natural gas liquids sales	353		17,240		18,396	17,240
Operating | Gabon
Revenues:
Crude oil, natural gas and natural gas liquids sales	58,568		53,674		110,754	111,178
Operating costs and expenses:
Production expense	23,332		18,486		47,655	35,199
Exploration expense	0				0	0
Depreciation, depletion and amortization	14,673		13,344		26,094	26,795
General and administrative expense	202		319		446	953
Credit losses and other	(297)		0		(635)	20
Total operating costs and expenses	37,910		32,149		73,560	62,967
Other operating income (expense), net	0		132			(34)
Operating income (loss)	20,658		21,657		37,194	48,177
Other income (expense):
Derivative instruments gain (loss), net	0		0		0	0
Interest (expense) income, net	(835)		(1,158)		(1,871)	(2,475)
Bargain purchase gain			0			0
Other income (expense), net	(132)		(137)		(764)	(231)
Total other income (expense), net	(967)		(1,295)		(2,635)	(2,706)
Income (loss) before income taxes	19,691		20,362		34,559	45,471
Income tax (benefit) expense	5,356		9,731		14,244	26,024
Net income (loss)	14,335		10,631		20,315	19,447
Consolidated capital expenditures	9,199		5,102		16,305	11,389
Operating | Egypt
Revenues:
Crude oil, natural gas and natural gas liquids sales	33,257		35,481		67,177	72,442
Operating costs and expenses:
Production expense	13,130		13,424		25,131	26,175
Exploration expense	0				0	48
Depreciation, depletion and amortization	9,220		8,416		17,271	16,752
General and administrative expense	62		207		103	376
Credit losses and other	0		3,178		0	4,812
Total operating costs and expenses	22,412		25,225		42,505	48,163
Other operating income (expense), net	0		0			0
Operating income (loss)	10,845		10,256		24,672	24,279
Other income (expense):
Derivative instruments gain (loss), net	0		0		0	0
Interest (expense) income, net	(180)		(350)		(423)	(760)
Bargain purchase gain			0			0
Other income (expense), net	57		0		61	0
Total other income (expense), net	(123)		(350)		(362)	(760)
Income (loss) before income taxes	10,722		9,906		24,310	23,519
Income tax (benefit) expense	3,343		8,749		8,530	15,782
Net income (loss)	7,379		1,157		15,780	7,737
Consolidated capital expenditures	7,593		1,868		13,840	6,196
Operating | Canada
Revenues:
Crude oil, natural gas and natural gas liquids sales	4,715		10,383		10,895	16,073
Operating costs and expenses:
Production expense	2,488		3,359		4,611	5,738
Exploration expense	0				0	0
Depreciation, depletion and amortization	3,160		5,294		6,550	9,191
General and administrative expense	39		(127)		31	(115)
Credit losses and other	0		0		0	0
Total operating costs and expenses	5,687		8,526		11,192	14,814
Other operating income (expense), net	0		0			0
Operating income (loss)	(972)		1,857		(297)	1,259
Other income (expense):
Derivative instruments gain (loss), net	0		0		0	0
Interest (expense) income, net	0		14		0	38
Bargain purchase gain			0			0
Other income (expense), net	430		5		398	5
Total other income (expense), net	430		19		398	43
Income (loss) before income taxes	(542)		1,876		101	1,302
Income tax (benefit) expense	0		0		0	0
Net income (loss)	(542)		1,876		101	1,302
Consolidated capital expenditures	210		7,155		1,517	19,714
Operating | Equatorial Guinea
Revenues:
Crude oil, natural gas and natural gas liquids sales	0		0		0	0
Operating costs and expenses:
Production expense	386		272		686	517
Exploration expense	0				0	0
Depreciation, depletion and amortization	0		0		0	0
General and administrative expense	86		93		150	171
Credit losses and other	326		163		637	321
Total operating costs and expenses	798		528		1,473	1,009
Other operating income (expense), net	0		0			0
Operating income (loss)	(798)		(528)		(1,473)	(1,009)
Other income (expense):
Derivative instruments gain (loss), net	0		0		0	0
Interest (expense) income, net	0		0		0	0
Bargain purchase gain			0			0
Other income (expense), net	(1)		3		(5)	2
Total other income (expense), net	(1)		3		(5)	2
Income (loss) before income taxes	(799)		(525)		(1,478)	(1,007)
Income tax (benefit) expense	0		0		0	0
Net income (loss)	(799)		(525)		(1,478)	(1,007)
Consolidated capital expenditures	306		0		559	0
Operating | Côte d'Ivoire
Revenues:
Crude oil, natural gas and natural gas liquids sales	353		17,240		18,396	17,240
Operating costs and expenses:
Production expense	1,056		16,905		7,114	16,905
Exploration expense	2,520				2,520	0
Depreciation, depletion and amortization	968		6,049		8,388	6,049
General and administrative expense	237		124		863	124
Credit losses and other	0		0		0	0
Total operating costs and expenses	4,781		23,078		18,885	23,078
Other operating income (expense), net	0		0			0
Operating income (loss)	(4,428)		(5,838)		(489)	(5,838)
Other income (expense):
Derivative instruments gain (loss), net	0		0		0	0
Interest (expense) income, net	(1,396)		(1,540)		(1,287)	(1,540)
Bargain purchase gain			0			0
Other income (expense), net	116		(301)		(61)	(301)
Total other income (expense), net	(1,280)		(1,841)		(1,348)	(1,841)
Income (loss) before income taxes	(5,708)		(7,679)		(1,837)	(7,679)
Income tax (benefit) expense	(6,139)		(3,050)		(10,234)	(3,050)
Net income (loss)	431		(4,630)		8,397	(4,630)
Consolidated capital expenditures	23,521		7,152		59,941	7,152
Corporate and Other
Revenues:
Crude oil, natural gas and natural gas liquids sales	0		0		0	0
Operating costs and expenses:
Production expense	1		0		1	1
Exploration expense	0				0	0
Depreciation, depletion and amortization	252		29		275	169
General and administrative expense	7,870		6,975		15,955	12,792
Credit losses and other	0		0		0	0
Total operating costs and expenses	8,123		7,004		16,231	12,962
Other operating income (expense), net	0		0			0
Operating income (loss)	(8,123)		(7,004)		(16,231)	(12,962)
Other income (expense):
Derivative instruments gain (loss), net	400		257		326	(590)
Interest (expense) income, net	(161)		1,917		(285)	2,685
Bargain purchase gain			19,898			19,898
Other income (expense), net	(117)		(1,554)		(288)	(3,259)
Total other income (expense), net	122		20,519		(247)	18,734
Income (loss) before income taxes	(8,001)		13,515		(16,478)	5,772
Income tax (benefit) expense	4,423		(6,127)		10,526	(7,215)
Net income (loss)	(12,424)		19,642		(27,004)	12,988
Consolidated capital expenditures	$ 37		$ 1,153		$ 19	$ 2,001